<!DOCTYPE html>


<html lang="zh-CN">


<head>
  <meta charset="utf-8" />
    
  <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1" />
  <title>
    React Native 多行展开收起功能 |  Shimmer
  </title>
  <meta name="generator" content="hexo-theme-ayer">
  
  <link rel="shortcut icon" href="/myBlog/images/ayer.svg" />
  
  
<link rel="stylesheet" href="/myBlog/dist/main.css">

  <link rel="stylesheet" href="https://cdn.jsdelivr.net/gh/Shen-Yu/cdn/css/remixicon.min.css">
  
<link rel="stylesheet" href="/myBlog/css/custom.css">

  
  <script src="https://cdn.jsdelivr.net/npm/pace-js@1.0.2/pace.min.js"></script>
  
  

  

<link rel="alternate" href="/myBlog/atom.xml" title="Shimmer" type="application/atom+xml">
</head>

</html>

<body>
  <div id="app">
    
      
      <canvas width="1777" height="841"
        style="position: fixed; left: 0px; top: 0px; z-index: 99999; pointer-events: none;"></canvas>
      
    <main class="content on">
      <section class="outer">
  <article
  id="post-2023-06-16-React Native 多行展开收起功能"
  class="article article-type-post"
  itemscope
  itemprop="blogPost"
  data-scroll-reveal
>
  <div class="article-inner">
    
    <header class="article-header">
       
<h1 class="article-title sea-center" style="border-left:0" itemprop="name">
  React Native 多行展开收起功能
</h1>
 

    </header>
     
    <div class="article-meta">
      <a href="/myBlog/2023/06/16/2023-06-16-React%20Native%20%E5%A4%9A%E8%A1%8C%E5%B1%95%E5%BC%80%E6%94%B6%E8%B5%B7%E5%8A%9F%E8%83%BD/" class="article-date">
  <time datetime="2023-06-15T16:00:00.000Z" itemprop="datePublished">2023-06-16</time>
</a>   
<div class="word_count">
    <span class="post-time">
        <span class="post-meta-item-icon">
            <i class="ri-quill-pen-line"></i>
            <span class="post-meta-item-text"> 字数统计:</span>
            <span class="post-count">780</span>
        </span>
    </span>

    <span class="post-time">
        &nbsp; | &nbsp;
        <span class="post-meta-item-icon">
            <i class="ri-book-open-line"></i>
            <span class="post-meta-item-text"> 阅读时长≈</span>
            <span class="post-count">3 分钟</span>
        </span>
    </span>
</div>
 
    </div>
      
    <div class="tocbot"></div>




  
    <div class="article-entry" itemprop="articleBody">
       
  <h3 id="React-Native-多行展开收起功能"><a href="#React-Native-多行展开收起功能" class="headerlink" title="React Native 多行展开收起功能"></a>React Native 多行展开收起功能</h3><h4 id="1、前言"><a href="#1、前言" class="headerlink" title="1、前言"></a>1、前言</h4><p>对文章可以添加标签，在目录页面，可以显示该标签。宽度不满一行的直接显示</p>
<p>宽度超过一行的，显示展开按钮。点击展开按钮显示全部标签，加收起按钮。</p>
<p>效果如下：</p>
<p><img src="https://s1.ax1x.com/2023/06/16/pCM7dTx.png" alt="pCM7dTx.png"></p>
<p>一开始是准备固定高度，flex-wrap展示，点击展开取消固定高度。而且展开按钮不能直接跟在标签后面。而且不同的设备分辨率不一样。展示也有问题。</p>
<h4 id="2、解决办法"><a href="#2、解决办法" class="headerlink" title="2、解决办法"></a>2、解决办法</h4><p>最后是使用<code>Text</code>标签的<code>numberOfLines</code>加<code>ellipsizeMode=&quot;clip&quot;</code>来实现。</p>
<p>一开始，每个<code>item</code>有个<code>numberOfLines</code>属性默认是<code>undefind</code>。</p>
<p>通过<code>onLayout</code>事件获取第一次渲染的高度。</p>
<p>然后记下来第一次渲染的高度，设置<code>numberOfLines</code>值为1，</p>
<p>再次渲染，比较前后的高度。如果第一次比第二次高，就表明超过一行，就设置<code>expand</code>为<code>true</code>，展示，“展开“按钮。点击展开设置<code>numberOfLines</code>值为999。同时记下来标签的数组的长度，点击的时候标签的长度等于记下来的长度就添加一个收起。</p>
<p>代码如下：</p>
<figure class="highlight javascript"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br><span class="line">75</span><br><span class="line">76</span><br><span class="line">77</span><br><span class="line">78</span><br><span class="line">79</span><br><span class="line">80</span><br><span class="line">81</span><br><span class="line">82</span><br><span class="line">83</span><br><span class="line">84</span><br><span class="line">85</span><br><span class="line">86</span><br><span class="line">87</span><br><span class="line">88</span><br><span class="line">89</span><br><span class="line">90</span><br><span class="line">91</span><br><span class="line">92</span><br><span class="line">93</span><br><span class="line">94</span><br><span class="line">95</span><br><span class="line">96</span><br><span class="line">97</span><br><span class="line">98</span><br><span class="line">99</span><br><span class="line">100</span><br><span class="line">101</span><br><span class="line">102</span><br><span class="line">103</span><br><span class="line">104</span><br><span class="line">105</span><br><span class="line">106</span><br><span class="line">107</span><br><span class="line">108</span><br><span class="line">109</span><br><span class="line">110</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">// height 是第一次渲染的高度</span></span><br><span class="line"><span class="comment">// expand 代表是否展示展开按钮</span></span><br><span class="line"><span class="comment">// tipLength 标签没有添加收起的长度</span></span><br><span class="line"></span><br><span class="line">&#123;tips &amp;&amp; (</span><br><span class="line">                  &lt;View style=&#123;styles.literatureTagBox&#125;&gt;</span><br><span class="line">                    &lt;Text</span><br><span class="line">                      onLayout=&#123;<span class="function"><span class="params">evt</span> =&gt;</span> &#123;</span><br><span class="line">                         <span class="comment">// 因为onLayout会在数据变化的时候调用</span></span><br><span class="line">                         <span class="comment">// 为了避免重复渲染，只有第一次和第二次才会走下面的逻辑</span></span><br><span class="line">                        <span class="keyword">if</span> (</span><br><span class="line">                          numberOfLines !== <span class="literal">undefined</span> &amp;&amp;</span><br><span class="line">                          numberOfLines !== <span class="number">1</span></span><br><span class="line">                        ) &#123;</span><br><span class="line">                          <span class="keyword">return</span>;</span><br><span class="line">                        &#125;</span><br><span class="line">                        <span class="keyword">const</span> heightStart = evt.nativeEvent.layout.height;</span><br><span class="line">                        <span class="keyword">if</span> (!height) &#123;</span><br><span class="line">                          arr[index].height = heightStart;</span><br><span class="line">                        &#125;</span><br><span class="line">                        arr[index].numberOfLines = <span class="number">1</span>;</span><br><span class="line">                        <span class="comment">// 当第一次的高度大于第二次的时候，说明需要换行</span></span><br><span class="line">                        <span class="keyword">if</span> (height &amp;&amp; height &gt; heightStart) &#123;</span><br><span class="line">                          arr[index].expand = <span class="literal">true</span>;</span><br><span class="line">                        &#125;</span><br><span class="line">                        setDataList([...arr]);</span><br><span class="line">                      &#125;&#125;</span><br><span class="line">                      numberOfLines=&#123;numberOfLines&#125;</span><br><span class="line">                      ellipsizeMode=<span class="string">&quot;clip&quot;</span></span><br><span class="line">                      style=&#123;[styles.literatureTagView]&#125;&gt;</span><br><span class="line">                      &#123;tips.map(<span class="function">(<span class="params">tip: any</span>) =&gt;</span> (</span><br><span class="line">                        &lt;View key=&#123;tip.id&#125;&gt;</span><br><span class="line">                          &lt;Text</span><br><span class="line">                            numberOfLines=&#123;<span class="number">1</span>&#125;</span><br><span class="line">                            ellipsizeMode=<span class="string">&quot;tail&quot;</span></span><br><span class="line">                            style=&#123;styles.literatureTag&#125;</span><br><span class="line">                            onPress=&#123;<span class="function">() =&gt;</span> &#123;</span><br><span class="line">                              <span class="keyword">if</span> (tip.id === <span class="string">&#x27;reduce&#x27;</span>) &#123;</span><br><span class="line">                                arr[index].expand = <span class="literal">true</span>;</span><br><span class="line">                                arr[index].numberOfLines = <span class="number">1</span>;</span><br><span class="line">                                setDataList([...arr]);</span><br><span class="line">                              &#125;</span><br><span class="line">                            &#125;&#125;&gt;</span><br><span class="line">                            &#123;tip?.tipName&#125;</span><br><span class="line">                          &lt;/Text&gt;</span><br><span class="line">                        &lt;/View&gt;</span><br><span class="line">                      ))&#125;</span><br><span class="line">                    &lt;/Text&gt;</span><br><span class="line">                    &#123;expand &amp;&amp; (</span><br><span class="line">                      &lt;TouchableOpacity</span><br><span class="line">                        onPress=&#123;<span class="function">() =&gt;</span> &#123;</span><br><span class="line">                        <span class="comment">//点击展开，expand设置为false,numberOfLines为999，展示所有标签</span></span><br><span class="line">                        <span class="comment">//当标签的长度和初始长度一样时，添加收起，不一样代表添加过了不操作</span></span><br><span class="line">                          arr[index].expand = <span class="literal">false</span>;</span><br><span class="line">                          arr[index].numberOfLines = <span class="number">999</span>;</span><br><span class="line">                          <span class="keyword">if</span> (arr[index].tips.length === tipLength) &#123;</span><br><span class="line">                            arr[index].tips = [</span><br><span class="line">                              ...arr[index].tips,</span><br><span class="line">                              &#123;<span class="attr">tipName</span>: <span class="string">&#x27;收起▲&#x27;</span>, <span class="attr">id</span>: <span class="string">&#x27;reduce&#x27;</span>&#125;,</span><br><span class="line">                            ];</span><br><span class="line">                          &#125;</span><br><span class="line">                          setDataList([...arr]);</span><br><span class="line">                        &#125;&#125;</span><br><span class="line">                        style=&#123;[&#123;<span class="attr">marginTop</span>: pxToDp(<span class="number">4</span>)&#125;]&#125;&gt;</span><br><span class="line">                        &lt;Text style=&#123;[styles.literatureTagExpand]&#125;&gt;展开▼&lt;/Text&gt;</span><br><span class="line">                      &lt;/TouchableOpacity&gt;</span><br><span class="line">                    )&#125;</span><br><span class="line">                  &lt;/View&gt;</span><br><span class="line">                )&#125;</span><br><span class="line">    <span class="comment">//样式</span></span><br><span class="line"> <span class="keyword">export</span> <span class="keyword">default</span> StyleSheet.create(&#123;</span><br><span class="line">  literatureTagBox: &#123;</span><br><span class="line">    flexDirection: <span class="string">&#x27;row&#x27;</span>,</span><br><span class="line">    alignItems: <span class="string">&#x27;center&#x27;</span>,</span><br><span class="line">  &#125;,</span><br><span class="line">  literatureTagView: &#123;</span><br><span class="line">    marginTop: pxToDp(<span class="number">4</span>),</span><br><span class="line">  &#125;,</span><br><span class="line">  literatureTag: &#123;</span><br><span class="line">    paddingHorizontal: pxToDp(<span class="number">4</span>),</span><br><span class="line">    borderWidth: pxToDp(<span class="number">1</span>),</span><br><span class="line">    borderColor: <span class="string">&#x27;#D2D8DF&#x27;</span>,</span><br><span class="line">    borderStyle: <span class="string">&#x27;solid&#x27;</span>,</span><br><span class="line">    borderRadius: pxToDp(<span class="number">2</span>),</span><br><span class="line">    fontWeight: <span class="string">&#x27;400&#x27;</span>,</span><br><span class="line">    textAlign: <span class="string">&#x27;center&#x27;</span>,</span><br><span class="line">    color: <span class="string">&#x27;#A2A8B5&#x27;</span>,</span><br><span class="line">    fontSize: pxToDp(<span class="number">12</span>),</span><br><span class="line">    marginRight: pxToDp(<span class="number">6</span>),</span><br><span class="line">    marginTop: pxToDp(<span class="number">4</span>),</span><br><span class="line">    height: pxToDp(<span class="number">24</span>),</span><br><span class="line">    lineHeight: pxToDp(<span class="number">22</span>),</span><br><span class="line">    maxWidth: pxToDp(<span class="number">120</span>),</span><br><span class="line">  &#125;,</span><br><span class="line">  literatureTagExpand: &#123;</span><br><span class="line">    height: pxToDp(<span class="number">24</span>),</span><br><span class="line">    paddingHorizontal: pxToDp(<span class="number">4</span>),</span><br><span class="line">    paddingVertical: pxToDp(<span class="number">2</span>),</span><br><span class="line">    borderWidth: pxToDp(<span class="number">1</span>),</span><br><span class="line">    borderColor: <span class="string">&#x27;#D2D8DF&#x27;</span>,</span><br><span class="line">    borderStyle: <span class="string">&#x27;solid&#x27;</span>,</span><br><span class="line">    borderRadius: pxToDp(<span class="number">2</span>),</span><br><span class="line">    fontWeight: <span class="string">&#x27;400&#x27;</span>,</span><br><span class="line">    textAlign: <span class="string">&#x27;center&#x27;</span>,</span><br><span class="line">    color: <span class="string">&#x27;#A2A8B5&#x27;</span>,</span><br><span class="line">    fontSize: pxToDp(<span class="number">12</span>),</span><br><span class="line">    lineHeight: pxToDp(<span class="number">22</span>),</span><br><span class="line">    marginTop: pxToDp(<span class="number">4</span>),</span><br><span class="line">  &#125;</span><br><span class="line"> &#125;</span><br></pre></td></tr></table></figure>
 
      <!-- reward -->
      
    </div>
    

    <!-- copyright -->
    
    <footer class="article-footer">
       
<div class="share-btn">
      <span class="share-sns share-outer">
        <i class="ri-share-forward-line"></i>
        分享
      </span>
      <div class="share-wrap">
        <i class="arrow"></i>
        <div class="share-icons">
          
          <a class="weibo share-sns" href="javascript:;" data-type="weibo">
            <i class="ri-weibo-fill"></i>
          </a>
          <a class="weixin share-sns wxFab" href="javascript:;" data-type="weixin">
            <i class="ri-wechat-fill"></i>
          </a>
          <a class="qq share-sns" href="javascript:;" data-type="qq">
            <i class="ri-qq-fill"></i>
          </a>
          <a class="douban share-sns" href="javascript:;" data-type="douban">
            <i class="ri-douban-line"></i>
          </a>
          <!-- <a class="qzone share-sns" href="javascript:;" data-type="qzone">
            <i class="icon icon-qzone"></i>
          </a> -->
          
          <a class="facebook share-sns" href="javascript:;" data-type="facebook">
            <i class="ri-facebook-circle-fill"></i>
          </a>
          <a class="twitter share-sns" href="javascript:;" data-type="twitter">
            <i class="ri-twitter-fill"></i>
          </a>
          <a class="google share-sns" href="javascript:;" data-type="google">
            <i class="ri-google-fill"></i>
          </a>
        </div>
      </div>
</div>

<div class="wx-share-modal">
    <a class="modal-close" href="javascript:;"><i class="ri-close-circle-line"></i></a>
    <p>扫一扫，分享到微信</p>
    <div class="wx-qrcode">
      <img src="//api.qrserver.com/v1/create-qr-code/?size=150x150&data=https://gitee.com/shimmer612/myBlog/2023/06/16/2023-06-16-React%20Native%20%E5%A4%9A%E8%A1%8C%E5%B1%95%E5%BC%80%E6%94%B6%E8%B5%B7%E5%8A%9F%E8%83%BD/" alt="微信分享二维码">
    </div>
</div>

<div id="share-mask"></div>  
  <ul class="article-tag-list" itemprop="keywords"><li class="article-tag-list-item"><a class="article-tag-list-link" href="/myBlog/tags/react-native/" rel="tag">react-native</a></li></ul>

    </footer>
  </div>

   
  <nav class="article-nav">
    
      <a href="/myBlog/2023/06/26/2023-06-26-Nest%E5%AD%A6%E4%B9%A0%E8%AE%B0%E5%BD%95%EF%BC%881%EF%BC%89/" class="article-nav-link">
        <strong class="article-nav-caption">上一篇</strong>
        <div class="article-nav-title">
          
            Nest学习记录（1）
          
        </div>
      </a>
    
    
      <a href="/myBlog/2023/05/17/2023-05-17-useReColumnWidth%E8%87%AA%E9%80%82%E5%BA%94Table%E5%88%97%E5%AE%BDhooks/" class="article-nav-link">
        <strong class="article-nav-caption">下一篇</strong>
        <div class="article-nav-title">useReColumnWidth自适应Table列宽hooks</div>
      </a>
    
  </nav>

   
<!-- valine评论 -->
<div id="vcomments-box">
  <div id="vcomments"></div>
</div>
<script src="//cdn1.lncld.net/static/js/3.0.4/av-min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/valine@1.4.14/dist/Valine.min.js"></script>
<script>
  new Valine({
    el: "#vcomments",
    app_id: "xGZKFxfEhEyqsK7YA4NNoQNr-gzGzoHsz",
    app_key: "qCe4kOh0W9rCgNWcv31cO3NF",
    path: window.location.pathname,
    avatar: "monsterid",
    placeholder: "说出你想说的吧~",
    recordIP: true,
  });
  const infoEle = document.querySelector("#vcomments .info");
  if (infoEle && infoEle.childNodes && infoEle.childNodes.length > 0) {
    infoEle.childNodes.forEach(function (item) {
      item.parentNode.removeChild(item);
    });
  }
</script>
<style>
  #vcomments-box {
    padding: 5px 30px;
  }

  @media screen and (max-width: 800px) {
    #vcomments-box {
      padding: 5px 0px;
    }
  }

  #vcomments-box #vcomments {
    background-color: #fff;
  }

  .v .vlist .vcard .vh {
    padding-right: 20px;
  }

  .v .vlist .vcard {
    padding-left: 10px;
  }
</style>

 
   
     
</article>

</section>
      <!--
 * @Author: zhangzhen
 * @Date: 2023-02-04 10:30:09
 * @LastEditors: zhangzhen
 * @LastEditTime: 2023-05-23 09:47:12
 * 
-->
<footer class="footer">
  <div class="outer">
    <ul>
      <li>
        Copyrights &copy;
        2021-2023
        <i class="ri-heart-fill heart_icon"></i> Shimmer
      </li>
    </ul>
    <!-- <ul>
      <li>
        
        
        
        由 <a href="https://hexo.io" target="_blank">Hexo</a> 强力驱动
        <span class="division">|</span>
        主题 - <a href="https://github.com/Shen-Yu/hexo-theme-ayer" target="_blank">Ayer</a>
        
      </li>
    </ul> -->
    <ul>
      <li>
        
        
        <span>
  <span><i class="ri-user-3-fill"></i>访问人数:<span id="busuanzi_value_site_uv"></span></s>
  <span class="division">|</span>
  <span><i class="ri-eye-fill"></i>浏览次数:<span id="busuanzi_value_page_pv"></span></span>
</span>
        
      </li>
    </ul>
    <ul>
      
    </ul>
    <ul>
      
    </ul>
    <ul>
      <li>
        <!-- cnzz统计 -->
        
      </li>
    </ul>
  </div>
</footer>
      <div class="float_btns">
        <div class="totop" id="totop">
  <i class="ri-arrow-up-line"></i>
</div>

<div class="todark" id="todark">
  <i class="ri-moon-line"></i>
</div>

      </div>
    </main>
    <aside class="sidebar on">
      <button class="navbar-toggle"></button>
<nav class="navbar">
  
  <div class="logo">
    <a href="/myBlog/"><img src="/myBlog/images/ayer-side.svg" alt="Shimmer"></a>
  </div>
  
  <ul class="nav nav-main">
    
    <li class="nav-item">
      <a class="nav-item-link" href="/myBlog/">主页</a>
    </li>
    
    <li class="nav-item">
      <a class="nav-item-link" href="/myBlog/archives">目录</a>
    </li>
    
    <li class="nav-item">
      <a class="nav-item-link" href="/myBlog/tags">标签</a>
    </li>
    
    <li class="nav-item">
      <a class="nav-item-link" href="/myBlog/photos">相册</a>
    </li>
    
    <li class="nav-item">
      <a class="nav-item-link" href="/myBlog/2021/02/12/2021-02-12-%E5%85%B3%E4%BA%8E%E6%88%91/">关于我</a>
    </li>
    
    <li class="nav-item">
      <a class="nav-item-link" href="/myBlog/message">留言板</a>
    </li>
    
  </ul>
</nav>
<nav class="navbar navbar-bottom">
  <ul class="nav">
    <li class="nav-item">
      
      
    </li>
  </ul>
</nav>
<div class="search-form-wrap">
  <div class="local-search local-search-plugin">
  <input type="search" id="local-search-input" class="local-search-input" placeholder="Search...">
  <div id="local-search-result" class="local-search-result"></div>
</div>
</div>
    </aside>
    <script>
      if (window.matchMedia("(max-width: 768px)").matches) {
        document.querySelector('.content').classList.remove('on');
        document.querySelector('.sidebar').classList.remove('on');
      }
    </script>
    <div id="mask"></div>

<!-- #reward -->
<div id="reward">
  <span class="close"><i class="ri-close-line"></i></span>
  <p class="reward-p"><i class="ri-cup-line"></i>请我喝杯咖啡吧~</p>
  <div class="reward-box">
    
    
  </div>
</div>
    
<script src="/myBlog/js/jquery-2.0.3.min.js"></script>


<script src="/myBlog/js/lazyload.min.js"></script>

<!-- Tocbot -->


<script src="/myBlog/js/tocbot.min.js"></script>

<script>
  tocbot.init({
    tocSelector: '.tocbot',
    contentSelector: '.article-entry',
    headingSelector: 'h1, h2, h3, h4, h5, h6',
    hasInnerContainers: true,
    scrollSmooth: true,
    scrollContainer: 'main',
    positionFixedSelector: '.tocbot',
    positionFixedClass: 'is-position-fixed',
    fixedSidebarOffset: 'auto'
  });
</script>

<script src="https://cdn.jsdelivr.net/npm/jquery-modal@0.9.2/jquery.modal.min.js"></script>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/jquery-modal@0.9.2/jquery.modal.min.css">
<script src="https://cdn.jsdelivr.net/npm/justifiedGallery@3.7.0/dist/js/jquery.justifiedGallery.min.js"></script>

<script src="/myBlog/dist/main.js"></script>

<!-- ImageViewer -->

<!-- Root element of PhotoSwipe. Must have class pswp. -->
<div class="pswp" tabindex="-1" role="dialog" aria-hidden="true">

    <!-- Background of PhotoSwipe. 
         It's a separate element as animating opacity is faster than rgba(). -->
    <div class="pswp__bg"></div>

    <!-- Slides wrapper with overflow:hidden. -->
    <div class="pswp__scroll-wrap">

        <!-- Container that holds slides. 
            PhotoSwipe keeps only 3 of them in the DOM to save memory.
            Don't modify these 3 pswp__item elements, data is added later on. -->
        <div class="pswp__container">
            <div class="pswp__item"></div>
            <div class="pswp__item"></div>
            <div class="pswp__item"></div>
        </div>

        <!-- Default (PhotoSwipeUI_Default) interface on top of sliding area. Can be changed. -->
        <div class="pswp__ui pswp__ui--hidden">

            <div class="pswp__top-bar">

                <!--  Controls are self-explanatory. Order can be changed. -->

                <div class="pswp__counter"></div>

                <button class="pswp__button pswp__button--close" title="Close (Esc)"></button>

                <button class="pswp__button pswp__button--share" style="display:none" title="Share"></button>

                <button class="pswp__button pswp__button--fs" title="Toggle fullscreen"></button>

                <button class="pswp__button pswp__button--zoom" title="Zoom in/out"></button>

                <!-- Preloader demo http://codepen.io/dimsemenov/pen/yyBWoR -->
                <!-- element will get class pswp__preloader--active when preloader is running -->
                <div class="pswp__preloader">
                    <div class="pswp__preloader__icn">
                        <div class="pswp__preloader__cut">
                            <div class="pswp__preloader__donut"></div>
                        </div>
                    </div>
                </div>
            </div>

            <div class="pswp__share-modal pswp__share-modal--hidden pswp__single-tap">
                <div class="pswp__share-tooltip"></div>
            </div>

            <button class="pswp__button pswp__button--arrow--left" title="Previous (arrow left)">
            </button>

            <button class="pswp__button pswp__button--arrow--right" title="Next (arrow right)">
            </button>

            <div class="pswp__caption">
                <div class="pswp__caption__center"></div>
            </div>

        </div>

    </div>

</div>

<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/photoswipe@4.1.3/dist/photoswipe.min.css">
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/photoswipe@4.1.3/dist/default-skin/default-skin.min.css">
<script src="https://cdn.jsdelivr.net/npm/photoswipe@4.1.3/dist/photoswipe.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/photoswipe@4.1.3/dist/photoswipe-ui-default.min.js"></script>

<script>
    function viewer_init() {
        let pswpElement = document.querySelectorAll('.pswp')[0];
        let $imgArr = document.querySelectorAll(('.article-entry img:not(.reward-img)'))

        $imgArr.forEach(($em, i) => {
            $em.onclick = () => {
                // slider展开状态
                // todo: 这样不好，后面改成状态
                if (document.querySelector('.left-col.show')) return
                let items = []
                $imgArr.forEach(($em2, i2) => {
                    let img = $em2.getAttribute('data-idx', i2)
                    let src = $em2.getAttribute('data-target') || $em2.getAttribute('src')
                    let title = $em2.getAttribute('alt')
                    // 获得原图尺寸
                    const image = new Image()
                    image.src = src
                    items.push({
                        src: src,
                        w: image.width || $em2.width,
                        h: image.height || $em2.height,
                        title: title
                    })
                })
                var gallery = new PhotoSwipe(pswpElement, PhotoSwipeUI_Default, items, {
                    index: parseInt(i)
                });
                gallery.init()
            }
        })
    }
    viewer_init()
</script>

<!-- MathJax -->

<!-- Katex -->

<!-- busuanzi  -->


<script src="/myBlog/js/busuanzi-2.3.pure.min.js"></script>


<!-- ClickLove -->

<!-- ClickBoom1 -->

<!-- ClickBoom2 -->


<script src="/myBlog/js/clickBoom2.js"></script>


<!-- CodeCopy -->


<link rel="stylesheet" href="/myBlog/css/clipboard.css">

<script src="https://cdn.jsdelivr.net/npm/clipboard@2/dist/clipboard.min.js"></script>
<script>
  function wait(callback, seconds) {
    var timelag = null;
    timelag = window.setTimeout(callback, seconds);
  }
  !function (e, t, a) {
    var initCopyCode = function(){
      var copyHtml = '';
      copyHtml += '<button class="btn-copy" data-clipboard-snippet="">';
      copyHtml += '<i class="ri-file-copy-2-line"></i><span>COPY</span>';
      copyHtml += '</button>';
      $(".highlight .code pre").before(copyHtml);
      $(".article pre code").before(copyHtml);
      var clipboard = new ClipboardJS('.btn-copy', {
        target: function(trigger) {
          return trigger.nextElementSibling;
        }
      });
      clipboard.on('success', function(e) {
        let $btn = $(e.trigger);
        $btn.addClass('copied');
        let $icon = $($btn.find('i'));
        $icon.removeClass('ri-file-copy-2-line');
        $icon.addClass('ri-checkbox-circle-line');
        let $span = $($btn.find('span'));
        $span[0].innerText = 'COPIED';
        
        wait(function () { // 等待两秒钟后恢复
          $icon.removeClass('ri-checkbox-circle-line');
          $icon.addClass('ri-file-copy-2-line');
          $span[0].innerText = 'COPY';
        }, 2000);
      });
      clipboard.on('error', function(e) {
        e.clearSelection();
        let $btn = $(e.trigger);
        $btn.addClass('copy-failed');
        let $icon = $($btn.find('i'));
        $icon.removeClass('ri-file-copy-2-line');
        $icon.addClass('ri-time-line');
        let $span = $($btn.find('span'));
        $span[0].innerText = 'COPY FAILED';
        
        wait(function () { // 等待两秒钟后恢复
          $icon.removeClass('ri-time-line');
          $icon.addClass('ri-file-copy-2-line');
          $span[0].innerText = 'COPY';
        }, 2000);
      });
    }
    initCopyCode();
  }(window, document);
</script>


<!-- CanvasBackground -->


    
  </div>
</body>

</html>